Heidelberg 2022 – wissenschaftliches Programm

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MP: Fachverband Theoretische und Mathematische Grundlagen der Physik

MP 2: Gravity, Amplitudes, AdS/CFT

MP 2.1: Hauptvortrag

Montag, 21. März 2022, 16:15–16:45, MP-H5

The Page curve from quantum error correction — •Daniel Harlow — Massachusetts Institute of Technology, Cambridge, Massachusetts, USA

The “Page curve”, meaning the von Neumann entropy of the radiation of a black hole plotted as a function of time, is one of the main tools for diagnosing the black hole information problem. Recently semiclassical calculations of this curve were given, but they have several mysterious features. In particular, it is not so clear how they can be interpreted from a Hilbert space point view, as one would like in a real theory of quantum gravity. In this talk I’ll explain how these calculations can be given such an interpretation through a novel generalization of quantum error correction to "non-isometric" codes.